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How can I list all collections in the MongoDB shell?
...ase to show all collection/tables inside it.
>show dbs
users 0.56787GB
test (empty)
>db.test.help() // this will give you all the function which can be used with this db
>use users
>show tables //will show all the collection in the db
...
What is the fastest way to create a checksum for large files in C#
...
I did tests with buffer size, running this code
using (var stream = new BufferedStream(File.OpenRead(file), bufferSize))
{
SHA256Managed sha = new SHA256Managed();
byte[] checksum = sha.ComputeHash(stream);
return BitC...
Text border using css (border around text)
...px #fff, -1px -1px 0 #fff, 1px -1px 0 #fff, -1px 1px 0 #fff;
}
<h1>test</h1>
Alternatively, you could use text stroke, which only works in webkit:
-webkit-text-stroke-width: 2px;
-webkit-text-stroke-color: #fff;
body {
font-family: sans-serif;
background: #222;
...
What are the Android SDK build-tools, platform-tools and tools? And which version should be used?
...the old build tool(version 17) for my project. Can I rebuild it with the latest build tool?
– user1156041
Jun 20 '16 at 14:51
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How do I invoke a Java method when given the method name as a string?
...mport java.lang.reflect.Method;
import org.junit.Assert;
import org.junit.Test;
public class ReflectionTest {
private String methodName = "length";
private String valueObject = "Some object";
@Test
public void testGetMethod() throws SecurityException, NoSuchMethodException, Illeg...
How to reformat JSON in Notepad++?
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I have test Plugins > Plugins Admin... by JSON Viewer in latest version Notepad++ v7.8 and its working properly
– Hardik Leuwa
Nov 2 '19 at 5:57
...
iTextSharp - Sending in-memory pdf in an email attachment
...emoryStream.Position = 0;
mm.Attachments.Add(new Attachment(memoryStream, "test.pdf"));
If my memory serves me correctly, this solved a similar problem in a previous project.
See http://forums.asp.net/t/1093198.aspx
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What's the most efficient way to erase duplicates and sort a vector?
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I think your results are wrong. In my tests the more duplicated elements the faster vector (comparative) is, actually scales the other way around. Did you compile with optimizations on and runtime checks off?. On my side vector is always faster, up to 100x depend...
How to check if a file exists in a folder?
... log.Info(fi.Exists);
or File.Exists Method:
string curFile = @"c:\temp\test.txt";
Console.WriteLine(File.Exists(curFile) ? "File exists." : "File does not exist.");
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Check if a method exists
Is there any way I can test if a method exists in Objective-C?
5 Answers
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